Skip the auto shop - Our mechanics make house calls

Q: Heard a loud noise and the car turned off.

asked by on

I was going down the road and heard a loud noise. Then car turned off. Went to a a complete stop. I'd open the hood to see if the belt pop off but it didn't. Got in the car and turn it on. It turn on but when I'd put it in gear in reverse, I'd heard that loud pop noise again. Then put it to drive and the car wouldn't go forward or reverse

My car has 330000 miles.
My car has an automatic transmission.

A: You have had a catastrophic failure of the ...

You have had a catastrophic failure of the rear end, transmission, or a component at a wheel. This is a major repair that will first require someone to determine which component failed. To figure this out, I would lift the car into the air on a rack, put it in gear, and give it some throttle. I would then follow the noise to find what failed. It is possible you can look underneath and the failure will be obvious, but most likely, it will require following the noise.

Locating a noise like this can be dangerous without a rack to lift the wheels off the ground. If you decide to chase the noise yourself, be sure to stay clear of the wheels that could lurch forward suddenly. If it is the transmission or rear end, you will need to be under the car to be sure where the noise is coming from, and this is not advisable.

This is most likely a large repair that could exceed the value of the car. Of course, how much you value it is what's important. You will need to determine this for yourself.

If you need some help with this, I recommend booking an appointment with a certified technician, such as one from YourMechanic, to help diagnose the noise when your car changes gear.

Good luck!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: On interstate, gear shift broke and stuck in first gear

There are many designs for the shifter system in vehicles, and unfortunately there is a known weak point in vehicles similar to your year and model of Porsche. Common concerns often lead to a recall where the part is upgraded...

Q: How Can I Tell If My Car Isn't Shifting Correctly?

The automatic transmission in most vehicles are designed to shift the gears for us rather than use a manual transmission and a clutch with a stick shift to change gears. If you have driven a manual transmission before then you...

Q: Air flow

Hello, thanks for writing in about your Ford Mustang. Yes, your car should have down stream O2 sensors (assuming you have the factory exhaust still). This should be located after the catalytic converter. If need some assistance, consider YourMechanic, as...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...